REDIRECT The Sahana Free and Open Source Disaster Management System was conceived during the 2004 Sri Lanka tsunami. The system was developed to help manage the disaster and was deployed by a government's Center of National Operations (CNO), which included the Center of Humanitarian Agencies (CHA). Based on the success of this initial application and the dire need for good disaster management solutions, particularly to handle large-scale disasters, Swedish International Development Agency (SIDA) funded a second phase through LSF (Lanka Software Foundation) to generalize the application for global use and to help in any large-scale disaster. The project has now grown to become globally recognized, with deployments in many other disasters such as the Asian Quake in Pakistan (2005), Southern